Do Pivots Matter? Yes, in Almost Every Case. A recent analysis of 39 billion-dollar companies says most stuck to their original vision. Serial entrepreneur Steve Blank argues that isn't true.

In late 2013, Cowboy Ventures did an analysis of U.S.-based tech companies started in the last 10 years that are now valued at $1 billion. They found 39 of these companies, which they called the "Unicorn Club."

The article summarized 10 key lessons from the Unicorn Club. Surprisingly, one of the "learnings" said that, "...the 'big pivot' after starting with a different initial product is an outlier. Nearly 90 percent of companies are working on their original product vision. The four 'pivots' after a different initial product were all in consumer companies (Groupon, Instagram, Pinterest and Fab)."

One of my students sent me the article and asked, "What does this mean?" Good question.

Since the pivot is one of the core concepts of the Lean Startup, I was puzzled. Could I be wrong? Is it possible pivots really don't matter if you want to be a Unicorn?

Related: Don't Be a 'Pividiot.' Follow These Tips.

Short answer -- almost all the Unicorns pivoted. The authors of the article didn't understand what a pivot was.

A pivot is a fundamental insight of the Lean Startup. It says on day one, all you have in your new venture is a series of untested hypothesis. Therefore you need to get outside of your building and rapidly test all your assumptions. The odds are that one or more of your hypotheses will be wrong. When you discover your error, rather than firing executives and/or creating a crisis, you simply change the hypotheses.

What was lacking in the article was a clear definition of a pivot. A pivot is not just changing the product. A pivot can change any of nine different things in your business model. A pivot may mean you changed your customer segment, your channel, revenue model/pricing, resources, activities, costs, partners, customer acquisition -- lots of other things than just the product.

A pivot is a substantive change to one or more of the 9 business model canvas components.

OK, but what is a business model?

Think of a business model as a drawing that shows all the flows between the different parts of your company's strategy. Unlike an organization chart, which is a diagram of how job positions and functions of a company are related, a business model diagrams how a company makes money -- without having to go into the complex details of all its strategy, processes, units, rules, hierarchies, workflows and systems.

Related: The Art of the Pivot

Alexander Osterwalder's business model canvas puts all the complicated strategies of your business in one simple diagram. Each of the nine boxes in the canvas specifies details of your company's strategy. (The business model canvas is one of the three components of the Lean Startup. See the HBR article here.)

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So to answer my student's question, I pointed out that the author of the article had too narrow a definition of what a pivot meant. If you went back and analyzed how many Unicorns pivoted on any of the nine business model components, you'd likely find that the majority did so.

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Take a look at the Unicorn Club and think about the changes in customer segments, revenue, pricing and channels all those companies have made since they began: Facebook, LinkedIn -- new customer segments; Meraki -- new revenue models and customer segments; Yelp -- product pivot. Now you understand the power of the pivot.

Lessons Learned:

• A pivot is not just when you change the product

• A pivot is a substantive change to one or more of the nine business model canvas components

• Almost all startups pivot on some part of their business model after founding

• Startups focused on just product pivots will limited their strategic choices -- it's like bringing a knife to a gunfight

Related: Steve Blank on Building Great Founding Teams